Type-writing machine.



No. 884,155. 4 PATENTED APR. 7, 1908.

" E. B..HBSS.

TYRE WRITING MACHINE. urmonzon mum nun: ao,19os.

M-TNEEEEE.

UNITED STATES PATENT OFFICE.

owman-sass, or NEW YORK, N. Y.,

,TYPEWRITER COMPANY, or JERSEY JERSEY.

-- No. segue;

.Speelflcstion of Letters Patent.

ASSIGNOR, BY MESNE ASSIGNMENTS, TO UNION CITY, NEW JERSEY, A CORPORATION OF NEW 'IYPE-WRITIN G MACHINE.

Patented April 7, 1908.

lorl iual application filed August 88, 1901, Serial No. 78,670. Divided and this application filed June 80, 1908.

Serial No. 168,091.

To all whom it may concern:

Be it known that ,I, EDWARD B. Hsss, citizen of the United States, and resident of the borough of Brooklyn, city of New York, in the county of Kings and btate of New York, have invented certain new and useful Improvements in ype-Writizv lt acl1ines, of which the following is a specification.

My invention relates to typewriting machines and more particularly to means for preventing the admission of dust or grit to the bearings of the type bars or carriers.

The present ap lication isa division of my application Serra No. 73,570, filed August 2 1901.

Heretofore eat difliculty has been encountered by ust orgrit entering the bearings of thetype bars or carriers in typewriting machines and rendering the type bars heavy-and sluggish in action, and it is at all times dil'licult to gain access to such bearings in order to clean them. These difficulties have been presented in a marked degree in "front strike typewriting machines, where-' in the platen is ordinarily located above the type bars with the front face of the platen over the type bar bearings or pivots so that rubbin dust or grit, composed of particles of san rubbenand aper, falls from the paper or platen when the operator is making erasures, and passes into the bearings of the type bars or carriers, and affects the operation thereof.

The object of my present invention is to overcome the difiiculties referred to by providin simple and eflicient means to prevent the ar mission of dust or grit to the bearings of the t pe bars or carriers.

To t e above and other ends which will hereinafter appear, my invention consists in the novel features of construction, arrangements of arts and combinations of devices to be hereinafter described and claimed.

In the accompanying drawings, wherein like reference numerals indicate like parts in the various views, Figure 1 is a vertical front to rear sectional view of sufficient number of parts'of one form of typewriting machines to illustrate my invention in its embodiment therein. Fig. 2 is a fragmentary side elevation of certain of the parts illustrated in Fig. l the view showin'gthe type bar in the printing position, and certain of the parts in section.

The frame 1 of the machine supports a type bar segment or upri ht support 2 that opens u wardly and IS s otted radially to provide caring slots 3 for the segmentally arran ed type are 4 which are pivoted at 5 in sair slots, and whiie I have shown but two type bars, it should be understood that a full set or system of scg nentally arranged t pe bars is employed. he side walls of the s ots or narrow spaces 3 uide the type bars in their movements in t 1e particular construction shown, and constitute )arts of the pivotal bearings. Each type ar is connected at 6 to an actuating device 7 which may in turn be connected to an suitable key actuated means for transmitting movement to the t pe bar, to swing it upwardly and rearward y to rinting position, as indicated at Fig. 2. Tie forward free ends of the type bars are so )ported u on a pad or an port 8 and each 0 the type liars is notched, bent or formed so as to provide a recess, depression, space or notch 9 in the front edge thereof 5 own in the present instance adjacent to the pivot of the type bar, for pur )0503 which will iereinafter appear. Exten in above the bearings for the type bars, an forward of and intersecting a line drawn from any type bar pivot to the printing point, is a segmental stri 1 10 which constitutes a dust guard or shie d that is preferably fixed and may be supported in )lace in any suitable manner, as for instance, connecting the same rigidly to the ends of t ie type bar segment 2, so that the shield is independent of the type bars and remains fixed during the movement of the type bar to and from the printing )osition. This dust shield preferably wholly covers the bearing slots and type bar pivots and projects forward of the slotted iortion of the type bar segment and is incliner downwardly and rearwardly from the front edge to the trough-like portion 11 that is adapted to receive any particles of dust or rit from the dust shield; and when a t pc or is in the printing position, the shiek extends into the s race or recess 9 in the bar and portions of t 9 bar are on opposite sides of the shield,

one ortion of the type bar being above and anot or portion being below the shield, so that the shield does not interfere with the free movement ing positions.

t will be seen that the portion 9 of each of the type bars to the printand pivoted portion of the t typeba'r constitutesan offset that enablestype bar to clear the shield in the printing movement of the bar and so that the heel e bar remains beneath the shield or guar when the type bar is in the rintin position.

It willbe o serve that the shield 10 constitutes'a segmental strip that covers a lu- -rality 01881'165 of type bar bearings and when these,'or like" terms are employed herein it should be understood that t ey are intended to {designate such a structure, I whether a single stripis employed for all of the type bar bearings 'orseveral strips are employed, each-covering the. bearings of a plurality of theentire number of type bars embodied in the machine. From an examination of Fig. 1, it will be observed that the front face of the laten 12, 'which laten is die ammatically il ustrated,

is int e same p ane or substantially the same plane-as the pivots of the type bars, and that these pivots and the bearing slots for the type bars are full protected from the admission of an rub ings, dust or grit which maydrop mm the paper at the front face of the lplaten; the dust or grit dropping a strike u n thes iield and passing to the troughli e portion-11 thereof. v It will be seen that the t pe bars are ivoted in an iipri ht are an are adapte to sine -t 0 front face of the platen which is ocated above the ivots of the type bars; that the dust guard is coated below t e platen and extends bo'th'in front of and be iind the t e bar pivots and beneath the platen an tweenthe front face of the laten and the pivoted bearings of the type are and intercepts falling particles of matter or rubhin which drop from the front face of the p aten and prevents such rubbinge from entering and clogging said bearings; that the type bars are a oped to clear the dust ard during the rinting movements of t 0 bars and that have provided aim is and efficient means for reventin rub ings or grit from entering tie pivota bearings of t e type bars.

It will be understood that for the purpose of my present invention it isimmaterial what character of means are ample ed for actuating the type bars; that it is ikewise immaterial whether the laten is shifted relatively to the ty 0 bars or upper and lower case rintin or t e type bars are shifted relativeytot e platen, or in fact, whether inore than'one type is employed on each bar so -that no relative shift between the type bars and platen will be required, as all of such featuresare well-known; and when I refer ereinto a'fixed dust shield or "shield which is fixed a must movement or the like, I mean a chief that bears a fixed relation to the type bar bearings, whether the segment that carries the type bars is moved for upper' scams or lower case writing or the platen is moved relatively to the se ment for this purpose.

While I have s iown and described one form of construction embodying my invention, it should be understood that various changes may be made without departing from the spirit of my invention.

What I claim as new and desire to secure ,by Letters Patent, is:

1. In a front-strike typewritin machine, the combination of a platen, type ars pivoted to strike against the front of the p atom, the pivotal bearings of said ty )e bars being below the front of the platen where rubbings from the paper on the platen tend to fall into said bearin and a dust guard arranged botwcen the front of the laten and the pivotal bearings of the type ions to intercept said falling ruhbings and prevent them from enterin and clogging the type bar bearin s.

2%11 a front-strike typewriting mac due, the combination of a platen, a series of rearwardlv striking pivoted type bars having their bearings arranged in an upright are below the platen, and a dust guard interposed between the printing line on the platen and the bearings of said type bars and fpreventing particles of dust or grit which all from the front of the platen from enterin said bearings, each of said type bars being s iaped 9 arranged series of front-strike pivoted type bars, and a dust guard arranged above and covering the bearings of the type bars, each of said type bars having the part thereof that stands in front of said dust guard when said type bar is in printing position forward of a lme Joining the pivota center of the type bar and the printing point, whereby the type bar clears the dust guard.

4. In a t pewriting machine, the combination of a p aten, pivoted type bars arranged below the platen and adapted to strike rearwardly against the front face thereof, and means for intercepting particles of matter that fall from the platen, said means being located between the bearin of the type bars and the front face of the p atom and extend ing both in front of and-behind the pivots of the type bars.

5., In a t pewritingmachine, the com bina tion of a p aten, pivoted type bars arranged below the platen and adapted tostrike rearwardly against the front face thereof, and means for intercepting particles of matter that fall from the platen, said means being located between the bearin s of the type bars and the front face of the aten and extendmg behind'the pivots of t ie type bars.

6. In a typewriting machine, the combination of a p aten, pivoted type bars arranged below the platen and adapted to strike rearstrike against the front face of t type bar Wardly against the front face thereof, and. a

shield located between the hearings of the type bars and the 'ilatenand extending underneath the front of the platen.

7. In a typewriting machine, the combination of e platen, pivoted below the platen and adapted to strike rear 'wardly against the front face thereof, and

means for intercepting particles of matter that fall from the platen, said means being located between the bearings of the type harsand the front face of the platen and being inclined downwardly and rearwardly and ex- Zending rearwardly of the pivots of the type are.

8. In a typewriting machine, the combination of a platen, an upright segment located. below the platen and containing a series of bearing slots, type bars pivoted in said slots, and a shieldloeated betweens'aid slots and the laten and extending over the slots at their fiont ends.

9 In a fr0ntstrike typewriting machine, the combination of an upright type bar segment, a series of rearwardly striking type bars carried by said segment and oivoted to he platen, and a segmental dust shield that projects forwardly of the segment and covers the pivotal bearings of the type liars and prevents particles which drop from the front face of the platen from entering the bearings of the type bar's. i

'10. In a front-strike typewriting machine, the combination of a platen, type bars-pivoted to strike rearwardly against the front face of the platen, and a dust shield located between the pivots of the type bars and the front face of the platen, each type bar being so constructed that a portion thereof will xtend over-the shield and a portion thereof will be under the shield when the type bar is in the printing position.

11. In a front-strike typewriting inach'ine, the combination of pivoted type bars, a platen, an uprigl'it segment arranged below said platen and having hearing slots in which said type bars move and by the side Walls of which the type bars are guided, and a du st shield which Wholly covers said slots and prevents the admission of particles which dmpfrom the front face of theplaten to said hearing slots.

12. In a front-strike typewriting machine, tl'ie'cornbination of a platen, a series of type bars JiVOtBd below the platen to swing rearwerdly to strike against the front face thereof, and a dust shieldthat covers the bearings of the typeihars, each of said type bars being offset to clear the shield when the is in the printing position,

type bars arranged 13. In a t v 'uewriting machine, the combi nation of a platen, an upright type bar sup port located below the platen and including type hairs pivoted within said spaces, ands platen and extending over the spaces at their lront ends.

nation of a type bar formed with a recess therein, and a dust shield for the hearing ofsaid type her, said shield being adapted to he received within the recess in said typo bar.

15. the combination of a type her segment, a se I, 1 l l o'tcd to said segment and teach prifi ided with a recess therein, and a segmental strip I that covers and is adapted to extend into the recess in each type bar and constitutes a dust guard to prevent the admission of dust or grit to said pivot hearings.

shield located between said spaces andthe Walls which are separated by narrow spaces, '65

H.111 a t \'pe\\'riting machine, the con1hi 7.0

In a front strike typewriting machine, '75

o ries of seginentally arranged type hers pivthe pivot bearings of said bars 16. In a typewriting machine, the conihination of a pivoted type bar, and a dust shield to prevent the admission of dust to the pivot hearing of the type her, said type bar I being formed to receive the dust shield when I the bar is in the printing enable the shield to cover the pivot hearing and not interfere with the printing move ment of the bar. 17. In a writing machine, the combinatype bars pivoted therein and notced or.

position so as to 9') /tion of the platen, the type bar se lnent,

acentthe pivots and a shield or guard 10- which enters said recesses or notches as the cated above the pivots, the front edge of 'typeibars approach the printing point.

I is. i

nation of a pivoted ty we bar having anoteh l orrecess, and a dust s iield wh ch lies Within ing position.

19. in a typewriting machine, the combi- In a tvpewriting machine, the con'ihii said recess when the type bar is in its print i'ih5 I l nation of a pivotedtype har formed with a recess therein, and a dust shield. for the hear- I ing of said type bar located in close proxirnpartially inclosing snidhearing,

ity to and receive d 1 said shield being adapted to be within the recess in said type bar.

Signed at the borough of'idanhatten, cit)- of New York, in the county of New York and 1 I 5 1 State of New York, this 27th day of Julie ,A. D. 1903.

l EDl/VARD B. HESS:

l Witnesses: 'l

Josnrn M. S'rolnoi rron,

K. V. DONOAVAN. 

